Oppoent is crazy multi tabling regular. I know that he folds on flop pretty often and only bets good hands. He has raised my cb b4 with flushdraw (on 2 diamond board) I wonder if he might have here often some flush draw + pair which equity I beat? I never like to fold on that board with TP but also I always bust there and see villain flopping miracle flush.

I agree with snodreliss. I think the very bottom of his range here will be the nuts FD without a pair. He's not shoving anything worse than that. So against the very bottom of his range, you're flipping. And then he can always have flopped a set or the made flush or a FD + pair and then we're pretty much dead.